(19)

(11)

EP 2 227 816 A1

(12)

(43) Date of publication: 15.09.2010 Bulletin 2010/37 (21) Application number: 09701177.9 (22) Date of filing: 09.01.2009

(51) International Patent Classification (IPC):  H01F 38/14(2006.01) H01F 27/40(2006.01) H01F 27/06(2006.01) H02B 13/02(2006.01) H01F 27/02(2006.01) H01F 27/36(2006.01) (86) International application number: PCT/US2009/000151 (87) International publication number: WO 2009/089058 (16.07.2009 Gazette 2009/29)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 09.01.2008 US 19962 09.01.2008 US 19994 07.01.2009 US 349935 (71) Applicant: Siemens Industry, Inc. Alpharetta, GA 30005-4437 (US)	(72) Inventors: ROC, Albert Pittsburgh, Pennsylvania 15217 (US) HAMMOND, Peter, Willard Greensburg, Pennsylvania 15601 (US) (74) Representative: French, Clive Harry  Siemens AG P.O. Box 22 16 34 80506 München 80506 München (DE)